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Trigonometric Quadrant Logic Demo

Trigonometric Quadrant Logic Demo
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2019-02-15 04:46
FunctionTrigonometryGeometric Construction
This example demonstrates the sign variation of trigonometric functions (sine, cosine, tangent) across different quadrants. It involves core concepts like trigonometric definitions, quadrant division, and function sign characteristics. Construction highlights include using GeoGebra commands such as Intersect, Point, Circle, Angle, Ray, and Random to create dynamic visuals. Suitable for high school students studying trigonometric properties and related calculus applications.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. Point(Ray[(1, 0), (2, 0)]) → B
  3. Circle(A, B) → c
  4. Point(c) → C
  5. Angle(B, A, C) → θ
  6. Ray(A, C) → f
  7. Ray(A, B) → g
  8. Random(1, 13) → n